Khat chewing in Yemen: turning over a new leaf.
Al-Mugahed
Leen
L
D029754:Catha; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D018515:Plant Leaves; D012919:Social Behavior; D012940:Social Problems; D019966:Substance-Related Disorders; D015006:Yemen